NASATV's This Week at NASA, May 27 - June 2, 2006.

* Planning for STS-121 Discovery Space Shuttle launch continues with press conference. * Space Shuttle wind tunnel tests on external fuel tanks. * International Space Station Astronauts conduct 6.5 hour spacewalk using Russian spacesuits. * Chandra X-ray telescope observe neutron star J0167 spewing radiation. * 41 years ago, NASA Astronaut Edward H. White II became the first american to walk in space.